Question

-7 by 9 power 21 × -7 by 9 power 3 = -7 by 9 power 3p

Answer 1

Answer:

8 = p

Step-by-step explanation:

$(\frac{-7}{9})^{21}*(\frac{-7}{9})^3=(\frac{-7}{9})^{3p}\\\\(\frac{-7}{9})^{21+3}=(\frac{-7}{9})^{3p}\\\\(\frac{-7}{9})^{24}=(\frac{-7}{9})^{3p}\\\\as~the~bases~are~same~powers~are~equal\\\\24 = 3p\\\\\frac{24}{3}=p\\\\8 = p$

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